The use of hand-held torches at the elevation of the host at mass, is something that is depicted fairly constantly in northern European art in the Middle Ages. Even when there are no altar lights, which in many depictions of altars there aren’t, these hand held lights are always depicted. Of course none of these torches actually survive, so frustratingly we have no real idea of how they were made. They seem to take the form of a number of candles twisted together, with their wicks united at the top, which is then attached to a long pole. Any other suggestions?
The mass of St Gregory by Adrien Ysenbrandt Netherlandish, about 1530s – 1540s